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55050050500 = 2253983311197
BaseRepresentation
bin110011010001001111…
…010001101111000100
312021002112101022120021
4303101033101233010
51400220303104000
641142321344524
73656122465024
oct632117215704
9167075338507
1055050050500
112138a355805
12a804198144
1352640a39a3
1429432dda84
151672dd611a
hexcd13d1bc4

55050050500 has 48 divisors (see below), whose sum is σ = 120252276144. Its totient is φ = 22015814400.

The previous prime is 55050050491. The next prime is 55050050509. The reversal of 55050050500 is 505005055.

55050050500 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (55050050491) and next prime (55050050509).

It can be written as a sum of positive squares in 8 ways, for example, as 24924199876 + 30125850624 = 157874^2 + 173568^2 .

It is a Harshad number since it is a multiple of its sum of digits (25).

It is not an unprimeable number, because it can be changed into a prime (55050050509) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4910902 + ... + 4922098.

It is an arithmetic number, because the mean of its divisors is an integer number (2505255753).

Almost surely, 255050050500 is an apocalyptic number.

55050050500 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

55050050500 is an abundant number, since it is smaller than the sum of its proper divisors (65202225644).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

55050050500 is a wasteful number, since it uses less digits than its factorization.

55050050500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21049 (or 21037 counting only the distinct ones).

The product of its (nonzero) digits is 3125, while the sum is 25.

Adding to 55050050500 its reverse (505005055), we get a palindrome (55555055555).

The spelling of 55050050500 in words is "fifty-five billion, fifty million, fifty thousand, five hundred".

Divisors: 1 2 4 5 10 20 25 50 100 125 250 500 9833 11197 19666 22394 39332 44788 49165 55985 98330 111970 196660 223940 245825 279925 491650 559850 983300 1119700 1229125 1399625 2458250 2799250 4916500 5598500 110100101 220200202 440400404 550500505 1101001010 2202002020 2752502525 5505005050 11010010100 13762512625 27525025250 55050050500